Trump has 3 choices to define victory if he wants to beat Iran. None of them are easy

In 1974, I was a young U.S. Army lieutenant serving under then-Lt. Col. Colin Powell, who commanded my battalion, the 1st Battalion, 32nd Infantry, in South Korea. Years later, as chairman of the Joint Chiefs of Staff, Powell became associated with a doctrine that warned America should not commit military force without a clear political objective, sufficient force, public support and a defined way out. Half a century on, that standard, more than any weapon system, is what has been missing from Washington's approach to Iran.